From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ferruh Yigit Subject: [PATCH] doc: update pcap documentation Date: Tue, 16 Jan 2018 18:45:28 +0000 Message-ID: <20180116184528.5498-1-ferruh.yigit@intel.com> Cc: dev@dpdk.org, Ferruh Yigit , Vipin Varghese , Michael Glynn To: Bruce Richardson , John McNamara , Marko Kovacevic Return-path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id D40D425B3 for ; Tue, 16 Jan 2018 19:45:33 +0100 (CET) List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Add note about PMD expects the network interfaces provided to be up, documented behavior to set expectations right. Also added minor fix. Signed-off-by: Ferruh Yigit --- Cc: Vipin Varghese Cc: Michael Glynn --- doc/guides/nics/pcap_ring.rst | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/doc/guides/nics/pcap_ring.rst b/doc/guides/nics/pcap_ring.rst index de47f68cf..b3b5cb49e 100644 --- a/doc/guides/nics/pcap_ring.rst +++ b/doc/guides/nics/pcap_ring.rst @@ -5,7 +5,7 @@ Libpcap and Ring Based Poll Mode Drivers ======================================== In addition to Poll Mode Drivers (PMDs) for physical and virtual hardware, -the DPDK also includes two pure-software PMDs. These two drivers are: +the DPDK also includes pure-software PMDs, two of these drivers are: * A libpcap -based PMD (librte_pmd_pcap) that reads and writes packets using libpcap, - both from files on disk, as well as from physical NIC devices using standard Linux kernel drivers. @@ -148,6 +148,12 @@ Otherwise, the first 512 packets from the input pcap file will be discarded by t --vdev 'net_pcap0,rx_pcap=file_rx.pcap,tx_pcap=file_tx.pcap' \ -- --port-topology=chained --no-flush-rx +Notes +^^^^^ + +The network interface provided to the PMD should be up, PMD will return an error if interface is down, +and PMD itself won't change the status of the external network interface. + Rings-based PMD ~~~~~~~~~~~~~~~ -- 2.14.3